Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
| A．during which time | B．for which time |
| C．during whose time | D．by that time |
____ others might have been satisfied, Dawson had higher ambitions.
| A．What | B．Why | C．Which | D．Where |
Understanding the cultural habits of another nation, especially ___containing as many different subcultures as the united states, is very difficult.
| A．one | B．that | C．some | D．the one |
When you go by train, make sure you take an express, ____ stops only at big stations.
| A．one | B．one that | C．that | D．what |
A short, thin man, __ past middle age, visited the manager and applied for the job.
| A．much | B．well | C．too | D．highly |
Having now __ 40, he feels that his football career is coming to an end.
| A．gone | B．turned | C．become | D．entered |